Landfill Leachate Degradation by TiO2-Immobilized White Cement

Abstract

This report presented the characterization of white cement and TiO2-immobilized white cement prior and after photodegradation treatment. The study was aimed at measuring the effectiveness of catalyst during the photodegradation at various different reaction times. The characteristic of the white cement was evaluated by XRD, whereas the effectiveness of the catalyst was evaluated by monitoring the COD values. The results showed that the white cement formed crystals with highest peak at 2θ 29.7990° and crystal size of 36.15 nm. In addition, the highest peak of the TiO2-immobilized white cement before and after photodegradation was 2θ 29.4634° (crystal size 36.52 nm) and 29.4735° (crystal size 45.37 nm) respectively. Moreover, dissolved organic matter in landfill leachate decreased during the seven-hour photodegradation as indicated by the decrement of 71.43% of the COD values.

The Effect of Annealing Temperature Growth on Fe-TiO2 Thin Film Photoactivity in Methylene Blue

“…Finally, these two radicals (OH* and O2*) interact with methylene blue (C16H18N3SCl) to produce CO2 and H2O (equation 7 Wardhani, 2014). From all these processes it can be concluded that the photocatalyst process of Fe-TiO2 thin film in methylene blue will convert it to simpler compounds, such as water (H2O) and CO2 (Yuningrat, Oviantari, & Gunamantha, 2015). Thus, the molecule of methylene blue is degraded and the solution becomes clearer.…”

Photocatalytic Degradation of Myclobutanil and Its Commercial Formulation with TiO2 P25 in Slurry and TiO2/β-SiC Foams

“…To overcome this difficulty, the immobilization of photocatalysts on support has been the subject of several studies in recent years. Many supports such as glass fibers, quartz fibers, cordierite monolith, alumina foams, cellulosic paper have been used to support TiO2 [10][11][12]. The most used cellular foams for immobilizing photocatalysts are metallic foams (mainly made of nickel or aluminium) as well as ceramic foams (alumina or cordierite).…”